Loose-leaf-binding machine



H. M. CRIPPEN.

LOOSE LEAF BINDING MACHINE.

APPLICATION FILED OCT. I4. 1919.

Patented July 13, 1920.

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LOOSE LEAF BINDING MACHINE.

APPLICATION FILED 00114. 1919.

Patented July 13, 1920.

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H. M. CRIPPEN.

LOOSE LEAF BINDING MACHINE.

APPLICATION FILED OCT. 14-, I919- 1,346, 179. a ented uly 13, 1920.

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H. M. CRIPPEN.

Patented July 13, 1920.

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7 APPLICATION FILED OCT-14, I919- 1,346, 179. Patented- July 13, 1920.

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1....lhllTE. STATES rareur OFFICE.

HENRY M. CRIPPEN, OF ATHENS, OHIO, ASSIGNOR TO THE ATHENS BINDEBY COMPANY, A FIBIVI COIVILPUSED 0F HENRY M. URZPPEN, WILLIAM Iil'. ALBER- MAN, FIELD SCOTT, AND II. H. HANING.

LOOSE-LEALF-BINFDING MACHINE.

Application filed October 14, 1-919.

T 0 all whom it may oonrern:

lie it known that l, llnNnY M. Ciurrnn, a citizen of the United States residing at Athens, in the county of Athens and State of Ohio, have invented certain new and useful Improvements in Loose Leaf Binding Machines, of which the following is a specification.

My invention relates to certain improvements in the loose leaf binding machine shown in my Patent 1,255,112 January 29, 1918.

The objects of the invention are to provide the erosshead carrying the punches with an automatically actuating stripper or ejector which will. when said punches are brought into register with the sheet-receiving pins transfer the sheets thereto; also to provide interchangeable sets of receiving pins for dillerent sizes of sheets; to provide novel. means for removably securing such sets of receiving pins in place; to provide a novel. means for holding the sheet clamp in place upon a pile of sheets; also to improve the sheet carrier by making it movable vertically at both, ends so as to better raise the pile of sheets from the receiving pins; also to form the sheet carrier in hinged sections so that its inner end may be withdrawn from over the base of the set of receiving pins to permit of the removal and replacement of said pins; to provide clamping hooks to hold down. the pile of sheets in the upward movement of the sheet carrier; also to provide the hollow anvil with a removable drawer to receive the punchings; also to provide other novel and useful features as will. be fully pointed out hereinafter.

These objects I accomplish by the construction shown in the accompanying drawin gs, in which:

Figure 1 is a sectional perspective of the machine with the parts in position for punching a pile of sheets, the filing pins being removed.

Fig. 2 is a plan thereof.

3 is a side elevation thereof partly in section.

Fig. 4-. is a longitudinal section on line 41-4 Fig. 2.

Fig. 5 is a cross section similar to Fig. 4 with the punching head over the pins.

Fig. 6 is a similar view, showing the Specification of Letters Patent.

Patented July 13, 1920.

Serial No. 330.573.

stripper forced down upon a pile of sheets impaled on the pins.

Fig. 7 is a similar View with the punching mechanism thrown to the left and the clamp held down on a pile of sheets as the sheet carrier is being elevated.

Fig. 8 shows a transverse section on line 8--8, Fig. 7.

Fig. 9 is a detail perspective, showing the removable pins about to be placed on' the axle.

Fig. 10 is a bottom plan view of the sheet and clamp carrier.

Figs. 11 and 12 are detail sections of the slotted inner end of the sheet and clamp carrier and adjacent underlying parts.

Fig. 13 is a perspective of the removable drawer for the punchings.

Fig. 145 is a detail, showing several ways of securing the sheets together.

Fig. 15 is a perspective of a set of filing pins having a less number of pins than in Fig. 9.

The bed or frame A may be of any suitable eonstruction and as illustrated is in 0blong form with the side bars A A connected at the right by an end bar A and connected near their left hand ends by a metal crossbar A upon which is mounted the horizontal gage flange g of the tubular anvil housing (it, provided with a longitudinal slot r, with which registers any one of a series of apertures it in the tubular anvil H, as shown in my said Patent 1,255,112. Instead of the end caps h of said patent I provide the sliding drawer H which closely fits the interior of the anvil H and has an opening 7i to receive the punchings from the anvil openings h. The drawer H may be readily removed to discharge the punchings.

Extending inwardly from the ends of the anvil housing (l are two horizontal arms mounted at their inner ends on an axle l1 the ends of which are fixedly secured .in the side bars A by pins 6. The ends of the axle E extend beyond the side bars and are provided with heads 6 e for a purpose herein inafter described. The inner ends of the arms are provided on their upper sides with stops g" and the ends of the anvil housing are provided with stops 9. i

Fromthe gage plate g on the anvil housrock on axle E and hook over the ends ing G extends the curved sheet guide F, provided with slots 7 and secured at the lower edge of its inner vertical wall F to the axle E, as in said patent. At the ends of the sheet guide F are braces F provided at their inner ends with laterally extending hooked stops 7 above the stops 9*.

The axle E is formed with an angular upper edge 6 preferably inverted V shape,

sheets of varying width so that sheets of a certain width may be applied to one set of pins and then by removing this set with the attached sheets another set may be applied. The sets of pins may be changed readily whenever necessary to file a lot of sheets of a different width without removing the sheets on the pins and permit them to be at all times visible.

Two latch hooks E E are mounted to of bars J to hold them in place on the axle E. These pin holding latches E are provided with extensions E E extending inwardly under the axle Eiadjacent to the downward path ofthe legs 19 p of clamp P when the latter is in clamping position on a pile of sheets and so prevent the latches E from swinging off of the bar J, as will be further described. The two latches E are connected bya contractile spring e which draws them inwardly against the ends of .the inverted V shaped portions of the axle E and holds them frictionally against accidental rotation.

This feature of the interchangeable sets of pins is not found in my patent referred to and is a valuable addition, as a number of different sizes of sheets may be filed with; out having to remove the sheets. from the pins until all of the pins of a set are filled. K K are two swinging guide rods mounted at their inner ends on axle E and limited in their upward inward movement by the stops at the inner ends of arms g and the stops 7, at the ends of the member F on the sheet guide F. The outer ends of guide rods K K are connected by a sliding crosshead K, carrying a series of punches K to cooperate with the anvil I to punch the sheets and then carry the punched sheets up over the slotted guide F to the pins J as in my said patent.

L is a stripper or ejector bar at the inner side of the crosshead K and apertured for the punches to pass through; This stripper L is provided with two pins Z Z, sliding in apertures in the crosshea d K and provided.

per L separately by hand as in my said.

patent I provide for its automatic actuation in stripping the sheets from the punches when the latter are in vertical alinenient with pins J, as will presently appear.

The ends of the stripper L are provided with operating arms L. having T shaped inner ends carrying guide rollers Z 1* at the inner sides of their lower ends to travel along the outer sides of the guide rods K K, and said T-shaped ends are further provided at the outer sides of their upper ends with actuating rollers Z Z against which the two lever arms M M work to depress the stripper when the punches have brought the sheets over pins J.

The crosshead K is reciprocated on its guide rods K by means of the two links N N pivoted at one end to the ends of the crosshead and at the other ends a a to the inner ends or hubs of the lever arms M M to one side of the axes thereof as in said patent.

The guide rods K K rest in their lowered position on the stops 9 and when swung up to the vertical they rest against stops rif it will be seen, therefore, that when the parts are in the positions shown in Figs. 1 and 2, where the guide rods l; K lie horizontally and the punches are in line with the anvil apertures, that a downward movement of the lever arms M M will cause an inward movement of the links N'N, which,

in turn will force the crosshead K and the punches K toward the anvil H, sothat a pile of sheets resting on ledge g will be perforated. A reverse movement of the lever arms M M will move the punches out of the anvil, but the sheets will remain on the punches and so by continuing the upward movement of the lever arms they will, through the rollers Z Z, raise the guide rods K K and crosshead so that the sheets will be carried by the punches up over the pins J and the crosshead will be stopped in this position by the stops f 9*. By now continuing the movement of the lever arms M M 'to the right their inner edges will now bear down on the rollers Z Z of the stripper arms L and so depress the stripper L along the punches and force the leaves downwardly off of. the punches and upon the pins J.

By now raising the lever arms M M, and swinging them to the leftthe parts be brought, through the pulling action of the links N N and weight of the crosshead and the guide rods, into position for another Plopunching operation. This operation may be continued from time to timetill the pins are filled with leaves, when the leaves may be bound to form a book, as will now be described.

A vertically swinging sheet and clamp carrier is pivoted at its outer or right hand end between'the two side bars of the frame, but not as in my said patent. The sheet and clamp carrier is formed in two sections O hinged together at the lower sides of their abutting ends, as at U and the shorter outer section 0 is provided on its under side at the outer edge thereof with an angle bar 0, the ends of which are pivoted, as at 0, to the vertical slides 0" worl ing in guide grooves or ways 0 in the side bars A ii; the upper ends of these slides 0 being provided with laterally projecting stops 0 to rest on top of the side bars and limit the downward movement of the slides and that end of the clamp carrier pivoted thereto. The lower ends ot' the slides 0 are connected by a crossbar 0, engaged by the curved ends of angle levers 0 pivoted at their angles, as at 0 to the inner sides of side bars A. From the inner arms of these angle levers o extend links 0*, the inner ends of which are eccentrically connected to the cam-like hubs m of the levers M M. From these hubs eX- tend the lifting earns M for a purpose to be presently described. The inner edge of the cl amp carrier t) has a slotted metal plate 0 to straddle the pins J, and also overlie the base J to which the pins are secured so as to assist in holding the base vl down upon the axle. The outer shorter section O has a handle 6 to swing it upwardly on its pivot and in so doing move the longer section 0 to the right to cause its slotted end 0 to be withdrawn from over the pin base J, to permit the removal and insertion of the interchangeable sets of pins.

ll hen the two sections 0 2 are moved .into alinci'nent they will be locked together so as to move as one piece vertically by means cl a latch 9 at its angle, as shown at 0 to the upper side oi section and having a notch 0 adapted to a headed stud 0 on section 9 of clamp carrier O. A retractile spring 0 tends to hold the latch in engage ment with said stud 0 The long arm 0 of latch 0 has two notches or recesses o in its inneredge and terminates in rear thereof in a curved extension 0 having an upwardly extending thumb piece 0 The latch O is normally held in its open position by means of a transversely rocking handle bar 1 extending upwardly between the two sections 5) O and connected at its lower end to the right hand end of a central longitudinal rock shaft T mounted in hearof angle form pivoted.

ings on the lower side of section (l of the clamp and sheet carrier 0. The inner end of the rock shait T has a vertically disposed head i: lying between the two depending lugs r r of two transverse slides ltmounted in bearings r" r on the under side of the slotted plate 0 and these slides are retracted by a bow or other spring U as in said prior patent. The outer ends of the slides ll. l are provided with rollers r r on their outer ends and these roller-carrying outer ends are projected beyond the side edges of the slotted plate 0 so as to overlie the cams M y when the hand lever t is thrown to the rear, at which time the hand lever will enter the iirst notch 0 of latch 0 and hold the hand lever in this position. The two slides ll are provid d wita two friction catches or grips B formed of bent springs, one end of each of which is fixedly connected to the slide,while the other or working end '1' lies next to an opening 0 one such opening being formed in plate 0 adjacent to each roller r When the legs 39 p or" clamp P before referred to are passed down through the openings 0 they will first gage the extensions E of latches and throw the latches over the pin-carrying bases or bars 5 and then lie in front oi said extensions E to hold the latches in place, as before described, and said legs 2/ 29 will then lie next to the outer biting ends of the triotion catches or grips ll li so that alter the slides B.-

are forced outwardly over cams M the catches or grips It will, by a further movement of hand lever t, be forced into biting or gripping contact with the legs p p of sheet clamp The hand lever will now enter the notch 0 in the latch 0 A laterally extending hook on hand lever 25 extends over the tree inner curved end oi latch 0 so that the latch and lever will be held from disengagement when the sections 0 O are unlatched and moved to withdraw the slotted plate 0 from the pins J.

The clamp, 1" comprises a crossbar bent up at the middle to form a handle 29 and bent down at its ends to "form the legs p p. Upon the crossbar is secured the clamping bar 2) formed of channel iron, as shown.

The sets or" pins l may be interchanged at any time by first moving the carrier 0 to the right trom over the base J.

In returning the carrier to its position over the base J its slotted end will engage the latches E ll and push them back from over the ends oi base I; The set of pins now in place will be held there by the carrier during the filing of the sheets on the pins. l l hen the pile is completed the legs of the clamp will be inserted in the openings 0 above described and the clamp forced down during which operation the legs 3) p will engage the latch extensions E and force the latches E E over the base of the pins to hold them down on :the axle against the upward lifting movement of the carrier in removing the completed pile from the pins.

The legs p 29 will pass the extensions E and lie in front of them so that the latches cannot swing back off of the bar J in the further operations.

To hold the .pile of clamped sheets against the upward compressing movement of the carrier 0 hooked arms X X are provided to hook over the clamp P when it is applied. These hooked arms X X extend up from a crank shaft X mounted in eye bolts 00 extending from the inner side of the lower end of vertical plate F and into the axle E below the lower edge of the pin base J, so as to permit the removal of the pin carrying base from the upper angular side of the axle. The shaft X has a depending eperatin arm 00' connected by 'a horizontal link as with a middle eccentric @0 on a transverse rock shaft V mounted in the side bars A under the free inner end of carrier 0. The rock shaft V is provided with an operating handle 10 and when this handle is thrown to the right the hooked arms X X will be thrown over the clamp- P, and vice versa.

The rock shaft is further provided adjacent to its ends with other cams or eccentrics w w over which extend the two 'pawls W N; These pawls il W are thrown into contact with two curved ratcl1- ets m m on the hubs m of levers M M by springs 10 w, and the pawls lV are raised from contact with the ratchets after the hooks X X have been withdrawn, by moving the handle 10 farther to the left. That is, the first movement :of crank 10 to the left causes cam. or eccentric 20 to withdraw the hooks X X from over the clamp P, or aupile of sheets, and a further movement causes the cams or eccentrics w w 'to lift the pawls WV WV.

The cam or eccentric w willrin its extremes of movement pass the center and so lock the parts against accidental movement.

Binding sleeves Y may be'placed on the pins J, and the lower ends of these sleeves have outwardly extending flanges y, on which the lower cover or back rests. These sleeves may be of alength to inclose the pins throughout their entire :ilength and their upper "ends may be pinched and bent out over the :upper or :outer cover to hold the leaves in bound or book form. Or where a "thinner book is to be for-med shorter sleeves may .be used. iOr asleeve may beformed of *a shorter section Y to I extend partially through the pile and a solid pin Y anay be driven through. the outer portion of the pile until its inner pointed "end y enters and expands the tumam-179 ber engages the. outer fa ce of the side bar A of the .base. r

A sliding gage Q 18 mounted at one end of the gage ifiange for-the sides of the sheets to rest against and this gage is actuated alongthe gage flange g and sheet guide F by means of a lever Q, pivoted to the under side ofthe gage flange 9 and connected'by a link q with said sliding gage-Q. i

A brief description of the operation is as follows: The sheets are placed against guide F with their lower edges on gage plate 9 and the lever arms M are pressed down to cause the punches ito perforate the sheets. The lever arms :M M will now be raised and thrown over to the right until the punches carrying the sheets are in vertical alinement with the filing pins d. Then the leverarms are pressed down to cause the stripper L to force "the punched sheets down on the said pins J. This set 'of pinsmay be removed, as before described, if a set of different sized sheets are to be filed or if there are enough of the size already being filed to form a book the punching and filing go on till a book *is formed, when the :top cover may be applied. It is understood that the other cover was applied in the beginning.

In pressing the lever arms M down in their stripper actuating movement the cams M M will have passed low enough to permit the lever 25 to throw the rollers r r outward over the upper sides of said The clamp P will now be placed over the pile of sheets and its legs 79 p forced down through the'openings 0 where they throw and lockthe latches E, as before described. The crank handle 10 will now be moved to the right to lower the pawls W W and throw the hooks X X over the clamp to lock it against upward movement with the can rier O.

The crosshead K will now be moved from over the pinsJ and the leverarms M Mivill also be swung to the left and in'so'doing the cams M will engage the rollers r and the links 0 will pull on angle lever '0" and so a rcare the carrier will be raised bodily and vertica y and the pile of sheets compressed bel the cargfor and the hooks X X. The pawls W W and ratchets will hold the parts as the pressure is a pplied. el /hen sullicicntly compressed the lover t is thrown over and enters the second notch 0" and in so doing it will be thrown out against p and loci; the clamp P to the .c The crank l'iandle no may now be swung to the left to retract the hooks X X and lift the pawls W, whereupon the lever arms M M may be swung; to the left with the punchcarrying devices till their normal punching position is reached.

The sheet and clamp carrier may now be swung, up to the vertical position by means of handle O until arrested by a stop (L19 on the end piece A thus drawing the sheets off of the pins.

The book may be released when sewed or riveted by retracting the lever t to its normal position so as to release the legs of the clamp from the trictioncatchesor grips.

To glue a cover over the stitches or clenched ends oi the sleeves or tubes remove the set of pins J, place the book against the vertical vall F, apply the glue and the cover, place a small board under the hooks X X, then operate lever arms M M to lift the carrier (l and force the hook upward against the hooks. Let the book remain till the glue dries and then remove.

l have shown a book the leaves of which are secured by the two forms of tubes or sleeves and also by stitches. V

The leaves by my improved apparatus may he filed or bound in all sizes of books day by day instead of piling the leaves into boxes and letting them remain till the end of a month before making them into a book or books. It follows that the sheets may be filed while new and they will remain intact from their first handling so that ready reterence may be had to them.

It is little or no trouble to interchange different sets of pins for dill'erent sizes of sheets or leaves.

Then by having the binding sleeves in place on the pins the leaves may be readily bound, as before described.

The apparatus may be made up within a suitable ofice cabinet or other piece of furniture.

What I claim is:

1. In a loose leaf binding machine, the combination with a plurality of receiving pins, of a bodily movable set of punches, a normally retracted stripper carried thereby; said punches being movable from the punch ing position into alinement with said pins, means for actuating the punches, and a connection between said punch actuating means and the stripper tor actuating the latter to force the sheets from the punches to the pins.

2. In a loose leaf binding machine, the combination with a punching mechanism adapted to carry the sheets or leaves from the punching position to the tiling position, interchangeable sets of receiving or filing pins to receive punched sheets of varying width from the punches.

2. ln a loose leaf binding machine, the combination with a removable set of receiving or filing pins and a support therefor, of a bodily movable set of punches, a normally retracted stripper carried thereby; said punches being movable from the punching position into alinement with said pins, means for actuating the punches, and a connection between said punch-actuating means and. the stripper for actuating the latter to force the sheets from the punches to the pins.

a. In a loose leat binding machine, the combination with a crosshead provided with punches, swinging guide rods upon which the crosshead slides, an operating lever, links connecting the lever and crosshead, and an anvil to cooperate with the punches, "of a plurality of receiving pins over which the cr'osshead may be swung; to bring the punches into alinement therewith, a stripper on the crosshead, and operative connections between the stripper and the operating lever whereby a furth r movement of the lever will cause the stripper to transfer the leaves from the punches to the pins.

5. In a loose leaf binding machine, the combination with a crosshead provided with punches, swinging guide rods upon whicl the crosshead slides,.an operating; lever, links connecting the lever and crosshead, and an anvil to cooperate with the punches, of a plurality of receiving pins over which the crosshead may be swung to bring the punches into alinement therewith, a spring retracted stripper on the crosshead and provided with end arms alongside the guide rods; the lower ends of said arms having lateral extensions in the path of the said lever arms for the purpose described.

6. lhe combination with a crosshead provided with punches, swinging guide rods upon which. the crosshead slides, an operating lever, links connecting the lever and crosshead, and an anvil to cooperate with the punches, of a plurality of receiving pins I over which the orosshead may he swung to bring the punches into alinement therewith, a spring retracted stripper on the crosshead and provided with end arms alongside the guide rods, lateral extensions at the lower ends of the arms in the path of said lever, and a roller guide also on each of the said arms and engaging the swinging guide arms.

7. In a loose leaf binding mechine, the combination with a tubular anvil having punch-receiving openings therethrough and provided with an endwise removable drawer to'receive the punchings, and a housing in which the anvil 1s mounted, oi a plurality of punches cooperating with the anvil, means receiving for operating thepunches, and a series of vertically disposed receiving pins over which the punchesmay be swung into alinement'therewith.

8. In a loose leaf binding machine, the combination with a removable set of receiving pins having a base and a support therefor for the punched sheets, of a sheet carrier having a slotted inner end movable longitudinally across the base of the set of i L pins to permit of the removal and insertion of sets of pins. 7 r

9. In a loose leai' binding machine, the

combination with a removable set of receiving pins having a base and a'support therefor,'and means for locking the set in place, of a sheet carrier having a slotted inner end to overlie the base of the set oi pins, and a sheet clamp having legs extending through said slotted end and controlling said locking means. A e r l 10. In a loose leaf binding machine, the

combination with a removable set of receiving pins having a base, a cross axle on which the set of pins rests, latch hooks pivoted on the axle toswing over the upper S1Cl60ftl18 base of the set of pins; said hooks having lower extensions, or a sheet carrier movable at 1ts lnner end across the base of the set ofpms to release the hooked latches,

and a clamp having legs extending through the said sheet carrier to engage the latch extensions as described.

11. In a loose leaf binding machine, the combination with a removable set of receiving pins, a cross axle having apertures in 'vvhich rest the lower projecting ends of the pins, and latches holding the set of pins on the axle, of a sectional hinged sheet'and clamp carrier controlling the pins and their latches, substantially as described.

' 12. In a looseleaf binding machine, the combination with a plurality of vertically disposedsheet-receiving pins, a punching mechanism at one side of the pins including a sliding crosshead provided with punches,

a cross axle below the pins, guide rods for the crosshead journaled on said axle, lever 'arms also journaled on the axle and operatively connected'with the crosshead'; said crosshead being movable over the pins with the punches in line therewith, of'a vertica'lly swinging sheet carrier extending at its free end across the lower endor" the set of pins to underlie the pile of sheets, a removable 'clamp at the inner end of said carrier having legs extending therethrough, cams on the hubs of the lever arms, slides on the inner end of the carrier adapted, to be thrown outwardly across the upper sides of said cams for lifting the carrier, and means to engage the upper end of the clamp to prevent its upward movement while the cams are liitmg the carrier to compress the pile of sheets, and means actuated by said slides to lock the clamp to the'carrier and hold the compressed pile of sheets while the carrier is moved upwardly.

13. In a loose leaf binding machine of the character described, the combination with the sheet and clamp carrier having a slotted inner free end, apertured at opposite sides, and a removable clamp having legs extendingdown through said apertures, of transverse slides on said carrier, a longitudinal rock shaft having a head at one end between said slides for forcing them apart to project their ends beyond the carrier, spring grips carried at one end by said slides with their free ends adjacent to the said apertures to grip the clamp legs, a hand lever for rocking said shaft, and lifting means to engage the outer ends of said slides when projected, for the purpose described.

14. In a loose leaf binding machine of the character described, the combination with the sheet and clamp carrier having a slotted inner free end apertured at opposite sides, and av removable clamp having legs extending down through said apertures, of transverse slides on said carrier, a longitudinal rock shaft having ahead between the abutting ends of said slides for forcing them apart, to project their ends beyond the car rier, spring grips secured at one end to the slides with their free ends adapted to grip the clamp legs, a hand lever for rocking said shaft, and a latch having notches for locking said lever in its first movement of projecting the slides and in its. further movement of causing the grips to firmly bite the legs ofthe clamp} 15. In a loose leaf binding machine of the character described, the combination with a support and a set of filing pins provided with a base 'removably engaging sa d support, of the sheet and clamp carrier formed in two hinged sections, andhaving a slotted inner end to overlie the base of' said pins and provided with vertical apertures, a removable clamp having legs extending through said apertures, slides mounted on said carrier adjacent to said slotted' end,

ing machine of the character described with the vertically disposed pins having a base,

the punching and stripping mechanisms and operating lever arms therefor provided with cams, of a sheet and clamp carrier having transverse slides at i s inner end which overlie the base of the pins, means for projecting the slides outwardly across said cams, a vertically movable slide to which the outer end of the carrier is pivoted to swing vertically, cam levers engaging said slide, and links connecting these last named levers with the first named main operating levers so that both ends of the carrier will be simultaneously raised, for the purpose described.

17. The combination with the sheet punching and transferring mechanism, and a curved sheet guide having a vertically disposed inner wall, a support, and a vertically disposed set of pins adjacent to said vertical wall to receive the sheets from the punching and transferring mechanism, said pins having a base removably engaging said support, of a vertically movable sheet carrier overlying at its inner end the base of the pins,

hooked arms mounted at the inner side of ring mechanism transfers the sheets, said pins having a base, a transverse rock shaft having upwardly extending hooked arms to overlie a pile of sheets on said pins, pawls engaging said ratchets to hold said levers against movement in one direction, a cam shaft having an intermediate eccentric, a link connecting said eccentric to the said transverse rocl; shaft, and end eccentrics on said shaft engaging the said pawls to lift them from the said ratchets, an upwardly movable sheet andclamp carrier having a slotted inner end overlying the base of the set of pins, a removable sheet clamp adjacent said slotted inner end, and means for actuating the carrier from the said cams on the lever arms.

19. In a loose leaf binding machine, the combination with a plurality of receiving pins and flanged sleeves mounted removably on the pins and inclosing same from their upper ends downwardly, of a punching and transferring mechanism to punch the sheets and transfer them to the said sleeves; the upper ends of the sleeves being adapted to be bent laterally to form upper retaining flanges or tongues.

20. in a loose leaf binding machine of the character described, the combination with the punching and transferring mechanism, the t 'ansverse axle serving as the axis thereof and provided with an outer headed end and the receiving pins to which the punched sheets are transferred, of a triangular sheet receiving box having at its lower end a slot-- ted bracket fitting over the headed end of the axle, as described.

in testimony whereof I aiiix my signature.

HENRY M. CRIPPEN. 

